UDP Broadcast Problem
b.xavier at internet.lu
Thu Feb 16 15:15:52 EST 2006
note also that limited broadcast IP addresses (like 255.255.255.255) are not
always passed across routers... In case you have one somewhere in the
> -----Original Message-----
> From: use-revolution-bounces at lists.runrev.com
> [mailto:use-revolution-bounces at lists.runrev.com] On Behalf Of
> Alex Tweedly
> Sent: Thursday, 16 February, 2006 20:51
> To: How to use Revolution
> Subject: Re: UDP Broadcast Problem
> Goldman David wrote:
> > I am attempting to send out a UDP Broadcast with the
> following script:
> > on mouseUp
> > put "255.255.255.255:5000" into theIP
> > open datagram socket to theIP
> > write "xx" to socket theIP
> > put the result
> > close socket theIP
> > end mouseUp
> > However what I get is: "error sending datagram", Further the
> > openSockets shows that 255.255.255.255:5000 is open.
> Your script (copy/pasted) works OK for me, on WinXP, 2.6.1
> (and the packets are received OK both on the same machine and
> another on the network). Unfortunately, I have no Mac here,
> so can't try that.
> > My packet sniffer (MacSniffer) shows no activity - i.e. it really
> > doesn't seem to be sending anything.
> > If I change the address to anything other than 255.255.255.255 - say
> > 0.255.255.255 - something happens.
> > Any idea why I can't send out the broadcast?
> Firewall ?
> Unprivileged account ?
> I'm not much of a Mac user, so don't know what else to suggest ...
> Alex Tweedly http://www.tweedly.net
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> Date: 15/02/2006
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